• 제목/요약/키워드: Various color information

검색결과 810건 처리시간 0.032초

A Cross-cultural Study on the Affection of Color with Variation of Tone and Chroma for Automotive Visual Display

  • Jung, Jinsung;Park, Jaekyu;Choe, Jaeho;Jung, Eui S.
    • 대한인간공학회지
    • /
    • 제36권2호
    • /
    • pp.123-144
    • /
    • 2017
  • Objective: The objective of this study is to evaluate affection on how users perceive colors viewed from an automotive visual display according to cultural and radical differences including North America, Europe, and Southeast Asia. This study especially aims to identify effects of the variation of tone and chroma of representative color groups by analyzing affection differences depending on cultural and racial differences targeting the colors constituted through variation of tone and chroma, centered on representative colors. Background: The colors of the menu, information display or background viewed through an automotive visual display are an important factor stimulating consumer's affection, and therefore an effort to express the vehicle's brand and product image through colors is made. The studies on colors focus only on the research on unique characteristics of colors, but an affective approach lacks according to cultural and racial differences on colors considering tone and chroma variation within a color from the currently used automotive visual displays. Method: To grasp the visual affection felt by users, this study extracted affective adjectives related with colors through existing literature and a dictionary for adjectives, and presented human affection dimensions on colors through evaluation of various colors. Prior to carrying out affection evaluation, the basic light sources, red (R), green (G), and blue (B) constituting the colors used for automotive visual displays were defined as a representative color group, respectively. When colors in a color group are constituted, the evaluation target of each color group consisted of the colors considering the variation of tone and chroma by changing color sense through RGB values of the remaining two light sources. And then, this study carried out affection evaluation on the constituted colors targeting the subjects with cultural and racial differences. Results: As a result of evaluating the constituted colors with representative affections, there were statistically significant differences between the groups having cultural and racial differences. As a result of S-N-K post-hoc analysis on the colors showing significant differences, North America and Europe were classified as heterogeneous groups. In some cases, Korea was classified as the homogeneous group with North America, but Korea was mainly classified as the homogenous group with Europe. Conclusion: The representative affections on colors from an automotive visual display was drawn as three affective dimensions: passionate, neat, and masculine. Based on these, the affection of Korea and Europe on the constituted colors showed significant differences from that of North America, as a result of affection evaluation on the constituted colors viewed through the visual display by reflecting cultural and racial factors. Regarding representative color groups, bigger cultural and racial differences were revealed in terms of affection on red and green colors than on blue color, and variation of affection was the biggest in the red color. Application: This study analyzed correlations of affection considering the colors constituted through variation of tone and chroma, and the culture and race in the representative color groups constituting a visual display. The results of this study are predicted to be utilized in coordination and selection of colors viewed from an automotive visual display taking into account culture and race.

Software Development for the Visualization of the Orientation of Brain Fiber Tracts in Diffusion Tensor Imaging Using a 24 bit Color Coding

  • Jung-Su Oh;In Chan Song;Ik-Hwan Cho;Jong-Hyo Kim;Kee Hyun Chang;Kwang-Suk Park
    • 대한의용생체공학회:의공학회지
    • /
    • 제25권1호
    • /
    • pp.43-47
    • /
    • 2004
  • 뇌의 기능성과 분산 영역간의 연결성에 대한 관심이 매우 증대되고 있는 추세다. 그 중에서 DTI (확산 텐서 영상)는 비침습적으로 뇌에서의 물분자의 확산과 뇌의 회백질 신경 다발 구조에 대한 정보를 제공할 수 있는 자기공명영상 기법이다. 따라서 우리는 이 기법을 통해 다른 해부학적 혹은 기능적 자기공명영상 기법으로는 얼을 수 없는 뇌의 신경 섬유 다발과 대뇌 피질 영역의 연결성 정보를 얻을 수 있다. 본 연구에서는 컬러 코딩 방식에 의하여 뇌의 주된 신경 다발의 방향성을 가시화 하고자 한다. 인간 뇌의 방향성 지도는 연합섬유, 방사섬유. 교련섬유. 운동 및 감각회로 섬유의 다발들을 구별하기 쉽게 하여준다. 우리는 이 목적 하에 24비트 칼라코딩 방법을 윈도우 PC 환경에서 IDL을 이용하여 구현하였다. 덧붙여 방향성의 각각의 성분 및 이방성에 대한 컬러 코딩과 이들을 표현하기 위한 다양한 색상표를 구현하였다. 결론적으로 우리의 24 비트 킬러 코딩을 이용한 뇌 회백질의 신경 다발의 방향성 가시화에 성공하였다. 우리가 구현한 방법에 의해 뇌의 주요 신경 다발들이 잘 가시화됨을 확인하였다.

외곽선 영상과 Support Vector Machine 기반의 문고리 인식을 이용한 문 탐지 (Door Detection with Door Handle Recognition based on Contour Image and Support Vector Machine)

  • 이동욱;박중태;송재복
    • 제어로봇시스템학회논문지
    • /
    • 제16권12호
    • /
    • pp.1226-1232
    • /
    • 2010
  • A door can serve as a feature for place classification and localization for navigation of a mobile robot in indoor environments. This paper proposes a door detection method based on the recognition of various door handles using the general Hough transform (GHT) and support vector machine (SVM). The contour and color histogram of a door handle extracted from the database are used in GHT and SVM, respectively. The door recognition scheme consists of four steps. The first step determines the region of interest (ROI) images defined by the color information and the environment around the door handle for stable recognition. In the second step, the door handle is recognized using the GHT method from the ROI image and the image patches are extracted from the position of the recognized door handle. In the third step, the extracted patch is classified whether it is the image patch of a door handle or not using the SVM classifier. The door position is probabilistically determined by the recognized door handle. Experimental results show that the proposed method can recognize various door handles and detect doors in a robust manner.

A Video Traffic Flow Detection System Based on Machine Vision

  • Wang, Xin-Xin;Zhao, Xiao-Ming;Shen, Yu
    • Journal of Information Processing Systems
    • /
    • 제15권5호
    • /
    • pp.1218-1230
    • /
    • 2019
  • This study proposes a novel video traffic flow detection method based on machine vision technology. The three-frame difference method, which is one kind of a motion evaluation method, is used to establish initial background image, and then a statistical scoring strategy is chosen to update background image in real time. Finally, the background difference method is used for detecting the moving objects. Meanwhile, a simple but effective shadow elimination method is introduced to improve the accuracy of the detection for moving objects. Furthermore, the study also proposes a vehicle matching and tracking strategy by combining characteristics, such as vehicle's location information, color information and fractal dimension information. Experimental results show that this detection method could quickly and effectively detect various traffic flow parameters, laying a solid foundation for enhancing the degree of automation for traffic management.

A Novel Imaging System for Removal of Underwater Distortion using Code V

  • Maik, Vivek;Daniel, Stella;Chrispin Jiji, A.
    • IEIE Transactions on Smart Processing and Computing
    • /
    • 제6권3호
    • /
    • pp.141-150
    • /
    • 2017
  • Images obtained from underwater are usually degraded due to the environmental conditions. Some of the typical degradation factors include turbidity and color degradation. These degradations can be attributed to the absorptive and scattering properties of underwater degradation in terms of optical parameters, such as modulation transfer function (MTF), optical transfer function (OTF),point spread function (PSF), and color constancy. In this paper, we use the CODE V optical simulation software to mimic underwater conditions and model the imaging platform, thereby studying various parameters, such as PSF and MTF, and we use the PSF to remove the underwater turbidity. Experimental results show increased performance with the algorithm, compared to other existing methods.

백색 보조 띠 기반의 정밀 스테레오 정합 기법 (Precise Stereo Matching Technique Based on White Auxiliary Stripe)

  • 강한솔;고윤호
    • 한국멀티미디어학회논문지
    • /
    • 제22권12호
    • /
    • pp.1356-1367
    • /
    • 2019
  • This paper proposes a novel active stereo matching technique using white auxiliary stripe pattern. The conventional active stereo matching techniques that uses two cameras and an active source such as projector can accurately estimate disparity information even in the areas with low texture compared to the passive ones. However, it is difficult that the conventional active stereo matching techniques using color code patterns acquire these patterns robustly if the object is composed of various colors or is exposed to complex lighting condition. To overcome this problem, the proposed method uses an additional white auxiliary stripe pattern to get and localize the color code patterns robustly. This paper proposes a process based on adaptive thresholding and thinning to obtain the auxiliary pattern accurately. Experimental results show that the proposed method more precisely measures the stepped sample whose depth is known in advance than the conventional method.

수중 로봇을 위한 다중 템플릿 및 가중치 상관 계수 기반의 물체 인식 및 추종 (Multiple Templates and Weighted Correlation Coefficient-based Object Detection and Tracking for Underwater Robots)

  • 김동훈;이동화;명현;최현택
    • 로봇학회논문지
    • /
    • 제7권2호
    • /
    • pp.142-149
    • /
    • 2012
  • The camera has limitations of poor visibility in underwater environment due to the limited light source and medium noise of the environment. However, its usefulness in close range has been proved in many studies, especially for navigation. Thus, in this paper, vision-based object detection and tracking techniques using artificial objects for underwater robots have been studied. We employed template matching and mean shift algorithms for the object detection and tracking methods. Also, we propose the weighted correlation coefficient of adaptive threshold -based and color-region-aided approaches to enhance the object detection performance in various illumination conditions. The color information is incorporated into the template matched area and the features of the template are used to robustly calculate correlation coefficients. And the objects are recognized using multi-template matching approach. Finally, the water basin experiments have been conducted to demonstrate the performance of the proposed techniques using an underwater robot platform yShark made by KORDI.

동적계획법을 이용한 컬러 스테레오 정합 (Color Stereo Matching Using Dynamic Programming)

  • 오종규;이찬호;김종구
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 2000년도 추계학술대회 논문집 학회본부 D
    • /
    • pp.747-749
    • /
    • 2000
  • In this paper, we proposed color stereo matching algorithm using dynamic programming. The conventional gray stereo matching algorithms show blur at depth discontinuities and non-existence of matching pixel in occlusion lesions. Also it accompanies matching error by lack of matching information in the untextured region. This paper defines new cost function makes up for the problems happening in conventional gray stereo matching algorithm. New cost function contain the following properties. I) Edge points are corresponded to edge points. ii) Non-edge points are corresponded to non-edge points. iii) In case of exiting the amount of edges, the cost function has some weight in proportion to path distance. Proposed algorithm was applied in various images obtained by parallel camera model. As the result, proposed algorithm showed improved performance in the aspect of matching error and processing in the occlusion region compared to conventional gray stereo matching algorithms.

  • PDF

상관도 비교를 이용한 웨이블릿 기반 워터마킹 (Wavelet-based Watermarking using Correlation Comparison)

  • Lee, Hyun-Suk;Vivi Oktavia;Lee, Won-Hyung
    • 대한전자공학회:학술대회논문집
    • /
    • 대한전자공학회 2003년도 신호처리소사이어티 추계학술대회 논문집
    • /
    • pp.217-220
    • /
    • 2003
  • This paper presents a wavelet-based digital watermarking scheme for color images. We insert watermarks in the DWI domain using spread-spectrum correlation-based watermarking in luminance component of the color image. The watermark, two pseudorandom patterns, is inserted by modifying the wavelet coefficients at subband HL2, LH2, HH2 according to message bits. To detect watermark, we calculate the correlation between the watermarked image and pseudorandom patterns. As compared with correlations, the watermark detector determines embedding message. Experimental results show that the scheme is not only invisible but also robust to various attacks such as JPEG compression, noise addition and so on.

  • PDF

한국 아동문학도서의 표지에 관한 연구 (A Study on the Characteristics of Bookjacket of Children's Books)

  • 한윤옥
    • 한국문헌정보학회지
    • /
    • 제24권
    • /
    • pp.113-137
    • /
    • 1993
  • The purpose of this study is (a) to investigate the general characteristics of bookjacket of children's books in Korea and (b) to observe general directions of the changes of those characteristics. For that purpose, children's books are gathered in alphabetical order of titles which has been published in the past 30 years and classified into three groups: 'books of 1966-1975', 'books of 1976-1985' and 'books of 1986-1993' according to the date of publication of those books. The important elements of the bookjackets belonging to these three groups are analyzed and compared. Main findings and conclusions made in this study are summarised as follows : (1) The style of illustration which has been appeared very often on the bookjacket of children's books is realistic art style. But a new tendency is that cartoon art style is above everything else. (2) The media which has been commonly used for illustration is watercolor. A new tendency is that various media is used for illustration. (3) People have been most commonly used as characters of illustration, and this tendency is continued from the past. (4) Visual representation of characters is usually simplified, and simple outlines is used for objects. The latest tendency is the same. (5) Visual content is arranged within bookjacket illustration as a whole, and this tendency is continued. (6) Lines for special emphasis are commonly used in depicting objects wi thin bookjacket illustration. (7) Realistic color has been most commonly used in depicting objects within bookjacket illustration. But the tendency is turned into unrealistic color. (8) Light grayish and strong as tone have been commonly used for bookjacket. A new tendency is that pale as tone is above everything else. (9) Gothic type has been commonly used for title within bookjacket. A new tendency is that various types are used for titles.

  • PDF